@ux-aspects/ux-aspects
Version:
Open source user interface framework for building modern, responsive, mobile big data applications
85 lines • 12.4 kB
JavaScript
import { Injectable } from '@angular/core';
import { Subject } from 'rxjs';
import { ConduitSubject } from './conduit-subject';
import * as i0 from "@angular/core";
export class ConduitZone {
/** Create a global subject store */
static { this.subjects = []; }
/** Expose an event stream of new values */
static { this.events = new Subject(); }
ngOnDestroy() {
// find all conduit subjects that are part of this zone
ConduitZone.subjects
.filter(_subject => _subject.zoneId === this._zoneId)
.forEach(_subject => this.unregisterConduit(_subject.conduit));
}
/** Store reference to the repository and begin watching for and emitting changes */
registerConduit(conduit) {
ConduitZone.subjects.push(new ConduitSubject(conduit, this, this._zoneId));
}
/** Destroy a conduit */
unregisterConduit(conduit) {
const subject = this.getConduitSubject(conduit.subject);
if (subject) {
// remove the subject from the internal list of conduit subjects
ConduitZone.subjects = ConduitZone.subjects.filter(_subject => _subject !== subject);
// perform all unsubscriptions
subject.destroy();
}
}
/** Provide the zone with an ID */
setZoneId(zoneId) {
this._zoneId = zoneId;
}
/** Emit a value to all zones for checking */
emit(event) {
ConduitZone.events.next(event);
}
/** Retrieve a conduit subsject object from the rxjs subject */
getConduitSubject(subject) {
return ConduitZone.subjects.find(_subject => _subject.conduit.subject === subject);
}
/** Get all subjects from all zones */
getSubjects() {
return ConduitZone.subjects;
}
/** Alter the properties of a conduit dynamically */
setConduitProperties(subject, properties) {
// find the conduit with the matching subject
const conduitSubject = this.getSubjects().find(_conduit => _conduit.conduit.subject === subject);
// if a match was found update the properties
if (conduitSubject) {
// update each specified property
for (const prop in properties) {
conduitSubject.conduit[prop] = properties[prop];
}
}
}
/** Programmatically create a conduit at runtime */
createConduit(subject, properties) {
// register the conduit with the zone
this.registerConduit({ ...properties, subject });
}
/** Register all conduits in a component */
registerConduits(component) {
if (Array.isArray(component._conduits)) {
component._conduits.forEach((conduit) => this.registerConduit({ ...conduit, subject: component[conduit.propertyKey] }));
}
}
/** Register all conduits in a component */
unregisterConduits(component) {
if (Array.isArray(component._conduits)) {
component._conduits.forEach((conduit) => this.unregisterConduit(conduit));
}
}
/** Return the global event stream */
getEvents() {
return ConduitZone.events;
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.12", ngImport: i0, type: ConduitZone, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }
static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "18.2.12", ngImport: i0, type: ConduitZone }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.12", ngImport: i0, type: ConduitZone, decorators: [{
type: Injectable
}] });
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{ Injectable, OnDestroy } from '@angular/core';\nimport { Subject } from 'rxjs';\nimport { ConduitSubject } from './conduit-subject';\nimport { ConduitEvent } from './interfaces/conduit-event';\nimport { ConduitMetadata } from './interfaces/conduit-metadata';\nimport { ConduitProperties } from './interfaces/conduit-properties';\n\n@Injectable()\nexport class ConduitZone implements OnDestroy {\n    /** Create a global subject store */\n    static subjects: ConduitSubject[] = [];\n\n    /** Expose an event stream of new values */\n    static events = new Subject<ConduitEvent>();\n\n    /** Store the zone name */\n    private _zoneId: string;\n\n    ngOnDestroy(): void {\n        // find all conduit subjects that are part of this zone\n        ConduitZone.subjects\n            .filter(_subject => _subject.zoneId === this._zoneId)\n            .forEach(_subject => this.unregisterConduit(_subject.conduit));\n    }\n\n    /** Store reference to the repository and begin watching for and emitting changes */\n    registerConduit(conduit: ConduitMetadata): void {\n        ConduitZone.subjects.push(new ConduitSubject(conduit, this, this._zoneId));\n    }\n\n    /** Destroy a conduit */\n    unregisterConduit(conduit: ConduitMetadata): void {\n        const subject = this.getConduitSubject(conduit.subject);\n\n        if (subject) {\n            // remove the subject from the internal list of conduit subjects\n            ConduitZone.subjects = ConduitZone.subjects.filter(_subject => _subject !== subject);\n\n            // perform all unsubscriptions\n            subject.destroy();\n        }\n    }\n\n    /** Provide the zone with an ID */\n    setZoneId(zoneId: string): void {\n        this._zoneId = zoneId;\n    }\n\n    /** Emit a value to all zones for checking */\n    emit(event: ConduitEvent): void {\n        ConduitZone.events.next(event);\n    }\n\n    /** Retrieve a conduit subsject object from the rxjs subject */\n    getConduitSubject(subject: Subject<void>): ConduitSubject | null {\n        return ConduitZone.subjects.find(_subject => _subject.conduit.subject === subject);\n    }\n\n    /** Get all subjects from all zones */\n    getSubjects(): ConduitSubject[] {\n        return ConduitZone.subjects;\n    }\n\n    /** Alter the properties of a conduit dynamically */\n    setConduitProperties(subject: Subject<string>, properties: Partial<ConduitProperties>): void {\n        // find the conduit with the matching subject\n        const conduitSubject = this.getSubjects().find(\n            _conduit => _conduit.conduit.subject === subject\n        );\n\n        // if a match was found update the properties\n        if (conduitSubject) {\n            // update each specified property\n            for (const prop in properties) {\n                conduitSubject.conduit[prop] = properties[prop];\n            }\n        }\n    }\n\n    /** Programmatically create a conduit at runtime */\n    createConduit(subject: Subject<void>, properties: ConduitProperties): void {\n        // register the conduit with the zone\n        this.registerConduit({ ...properties, subject });\n    }\n\n    /** Register all conduits in a component */\n     \n    registerConduits(component: any): void {\n        if (Array.isArray(component._conduits)) {\n            component._conduits.forEach((conduit: ConduitMetadata) =>\n                this.registerConduit({ ...conduit, subject: component[conduit.propertyKey] })\n            );\n        }\n    }\n\n    /** Register all conduits in a component */\n     \n    unregisterConduits(component: any): void {\n        if (Array.isArray(component._conduits)) {\n            component._conduits.forEach((conduit: ConduitMetadata) =>\n                this.unregisterConduit(conduit)\n            );\n        }\n    }\n\n    /** Return the global event stream */\n    getEvents(): Subject<ConduitEvent> {\n        return ConduitZone.events;\n    }\n}\n"]}